Model 908 Portable CO2 Analyzer for Spot Checks

Posted by adminrexindoto at March 15th, 2017

The Quantek Model 908 CO2 Analyzer is designed for spot measurement and analysis of carbon dioxide levels.

Analysis ranges of 0-2000ppm up to 0-100% vol/vol.

Simply introduce your sample gas flow into the inlet of the Model 908 portable CO2 analyzer, and see results on the LCD within 15-20 seconds. The inlet accepts a flow rate of 50cc/min to 1000 cc/min. If you don’t have a source of flow or positive pressure, the analyzer can be equipped with an internal pump to draw in sample gas for analysis.

HIGHLY PORTABLE

The Model 908 portable analyzer weighs about 2 lbs and is easily carried via shoulder strap. Battery operation is included and provides approximately 10-12 hours of run time.

EASE OF USE

Simply connect the included sample tubing to your inlet connector or port. If you have a source of flow, you will achieve a reading in about 15-20 seconds. If you do not have a source of flow, the analyzer can be equipped with an internal sampling pump to draw sample into the analyzer.

CO2 SENSOR – BASICS

The sensor design has a low internal volume and requires only a low sample flow of about 5 to 1000 cc/min. Our market leading CO2 sensor uses the latest in dual-wavelength NDIR measurement principles, reducing drift and allowing for a single point calibration. While the sample introduced should be clean and dry (non-condensing), should moisture enter the analyzer, the Model 908 is equipped with an internal moisture trap filter. This provides a last barrier of protection, and is user-replaceable (we provide spares).

CO2 SENSOR – DETAILS

The instrument uses a solid-state infrared sensor which has no moving parts, a compact optical cell, and microprocessor-based calibration factors using a 6th order polynomial equation to linearize the full range measurement up to 100%. Infrared CO2 measurements are inherently non-linear, especially over a high range of concentrations. The math algorithm used in the 906 yields more accurate measurements over a much wider range of concentrations than other methods.

DATA COLLECTION OPTIONS

The Model 908 can be equipped with a data logger which fits in the carrying case. This data logger will continuously collect the readings from the analyzer. Use the included software to analyze the data, conduct statistical analysis (such as analyzing averages and standard deviations).

ABOUT THE BATTERY

The 908 CO2 analyzer is equipped with an advance 10 cell NiMH battery pack. The charger module plugs into any international 100-240V outlet, for charging or continuous operation.

ABOUT THE WARRANTY

The portable CO2 analyzer is backed it up with a two year warranty, twice the industry standard. The advanced design allows an output requiring less frequent calibration. It provides a stable, drift-free linearized voltage or current output that is much less susceptible to external electro-magnetic interference than conventional analog electronics.

Specification :

Range – 0.0 to 100% Carbon Dioxide (Other Ranges: 0 to 2000/5000ppm, 0-1%, 0 to 2.5%, 0 to 10%, 0 to 20%, 0-30%, 0-50%)
Resolution – 0.1% CO2 for 0 to 30, 0-50, and 0 to 100% ranges (0.01% CO for 0 to 2.5%, 0 to 10%, or 0 to 20% ranges) (0.001% CO2 for 0 to 1%) (1ppm for 0-2000ppm)
Accuracy – +/-1% of reading, or 0.2% CO2 for 0-100% range (+/- 3% of reading, or 75ppm for 0-2.5% and lower ranges)
Drift – less than 0.02% per month
Sensor- Infrared (NDIR); non-depleting with no moving parts
Sensor Body – Anodized aluminum
Calibration – Single Point Calibration – With standard calibration gas (available from Quantek if needed); SPAN adjustment on rear panel
Calibration Frequency – Within two years of original manufacture; each year thereafter
Power Supply – Internationally compatible charger or power supply, 100/240V (50/60Hz) to 12V
Sample Pump – Optional; internal, with on-off switch on front panel, draws about 5 cc/sec
Battery Operation – Included, with internal rechargeable 12 Vdc NiMH battery pack
Size – 8 in. x 2 in. x 7 in. (203 mm x 51 mm x 178 mm)
Weight – 2 lbs. (0.9 kg)
Warranty – Two Years, parts and labor
Standards – CE, RoHS
Consumables – Internal, user-replaceable moisture and particulate filter; external 4in. moisture removal cartidges
Origin of Goods – Our goods are manufactured in the U.S.A.

Application :

Bioreactors
Gas Blending Systems
Fruit Storage Areas
Fermentation
Algae Experiments
Welding Gases
Controlled Atmosphere Rooms
Carbon Capture and Storage
Incubation Experiments
Cell Culture analysis
Greenhouse CO2 Research
Biofuel Experiments
CO2 Mitigation Research
….. and Many More

Included :

Internationally compatible (100-240V) power supply / charger

A – double orange connector (1/16 ID tubing) – useful if you choose to inject sample gas into the inlet of the analyzer using the supplied 60 cc syringe.

B – Two particulate filters – These leur-fit filters can be attached to the inlet fitting of the analyzer to provide extra protection from particulates.

C – T style connector – This fitting is useful as a flow limiter – by passing your sample gas through this fitting, and leaving one of the T stems open, you can reduce the flow reaching the analyzer.

D – Inlet fitting (accepts 1/4in ID tubing) – This is a replacement spare for the inlet fitting in the event that your original fitting is damaged or the threads stripped.

E – Adjusting screwdriver for potentiometers – This screwdriver fits the potentiometers on the back of the analyzer.

F – Rubber Washers – These are replacement rubber washers. One is already installed behind the inlet fitting to provide a leaktight seal.

G – 60 cc syringe for sample injection – Useful for syringe injection. Note, however that this method may require at least 120 cc of gas to get a proper reading.

H – 1/16 ID tubing – This tubing can be attached to one of the orange hubbed needles, and affixed to the inlet fitting.

I – Internal inline moisture trap filter (PTFE .45 micron) – This filter is a replacement for the inside particulate and moisture filter in the analyzer. Should you accidentally allow moisture into your gas flow, then find the readings not to change as expected, then you may need to replace this filter inside the analyzer by removing the top cover. This is a four layer filter which will completely block gas flow upon saturation.

Optional :

Internal Pump – A mini diaphram pump installed inside the analyzer, and draws approximately 5 cc per second. Great for situations where there is no source of flow. Expected -pump lifetime is 8-10 years. The pump can be used in two modes – one mode is clicked “on” and leaves the pump running until unclicked. Pressing the switch lightly enables operation according to the user adjustable potentiometer timer.

Data Logger – Our data logger includes everything you need for collecting analysis data from our benchtop analyzers. The data logger is used to collect measurements for offloading to a PC or Mac

Fine .01% Resolution – An extra digit of resolution can be provided for applications where accuracy is of the utmost importance. Please note that for 0-20% CO2 analysis range, we can provide this at no additional charge.